This file contains a complete performance, accompaniment tracks for each instrument, and sheet music in PDF format. I've also included an alternate Bb Clarinet 1 part in case it is difficult to get an Eb clarinet.
 
This work is for Eb clarinet (or alternate Bb part), 2 Bb clarinets, and a bass clarinet.
 
Maestro Parmigiani has passed, but much of his music is available on his Musescore pages at https://musescore.com/user/36619960.